Variation in morphometric and genetic characteristics of stellate sturgeon juveniles raised at different densities

Variation in morphometric and genetic characteristics of stellate sturgeon juveniles raised at... Genetic and size/weight characteristics of stellate sturgeon juveniles were examined under standard and twice lower than standard densities. Viability, growth rate, and variability of juveniles were higher at standard density. Individuals with different genotypes exhibited higher viability and faster growth at different densities, which was particularly pronounced in case of the PGM1 locus. Despite the high phenotypic variability of sturgeon juveniles under standard conditions, its genetic component was higher at low density. It was concluded that low density conditions, which are closer to the natural ones, promote maintenance of the optimal level of genetic variability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Variation in morphometric and genetic characteristics of stellate sturgeon juveniles raised at different densities

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Microbial Genetics and Genomics; Animal Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795406020128
Publisher site
See Article on Publisher Site

Abstract

Genetic and size/weight characteristics of stellate sturgeon juveniles were examined under standard and twice lower than standard densities. Viability, growth rate, and variability of juveniles were higher at standard density. Individuals with different genotypes exhibited higher viability and faster growth at different densities, which was particularly pronounced in case of the PGM1 locus. Despite the high phenotypic variability of sturgeon juveniles under standard conditions, its genetic component was higher at low density. It was concluded that low density conditions, which are closer to the natural ones, promote maintenance of the optimal level of genetic variability.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Mar 15, 2006

References

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